Planned battery swap: am I doing this right?

Louisesjpp

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Oct 27, 2021
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Navarra, Spain
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85,098
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McLouis Nevis 873
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I'm about to replace the AGM battery with 2 Lipo4s. I'm inexperienced with solar and battery work, so can I just run this by the experts on this group?

First, what isolation can I do? There's no circuit diagram that I can find (McLouis Nevis) but maybe I can isolate battery and panels at the fuse box. Should I cover the panels?

Old battery out, make new battery supports. Flip switches over on DC/DC, mains charger and MPPT for lithium. New batteries in, make and fit jumper cables to put them in parallel, connect up. Fuses back in, uncover panels. Admire the work and have a cup of tea.

Don't forgot a couple of sub-jobs: 12v to run out from somewhere for the SOG (next week's job) and hold lighting, run a 220v out to the hold for e-bike charging.
 
I don't know what solar controller you have so best to disconnect one of the leads from the panels and reconnect after the batteries are connected to ensure it sets to 12v.
Otherwise all OK.
 

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